A motor boat sails 30 km of a river towards upstream in 10hrs. How lon – McqOptions

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1.	A motor boat sails 30 km of a river towards upstream in 10hrs. How long will it take tocover the same distance downstream, if the speed of the current is ½ of the speed of the boatin still water.
A.	1.8hr
B.	3.33hr
C.	5hr
D.	4.33hr
Answer» C. 5hr

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